https://www.nbcnews.com/news/world/daylight-saving-time-may-become-thing-past-europe-n893131

Some EU member states dislike daylight saving time and the EU is now doing a survey to assess whether or not they keep it.
And I'm stunned by the fact that some US states do not adopt it.

https://ec.europa.eu/info/consultations/2018-summertime-arrangements_en

This site lists negative aspects of summertime, which include health impacts I've mentioned above.